.auto {
  margin: 0 auto;
  width: 1184px;
}

span {
  display: block;
}

/* <!-- banner --> */
.brand-banner {
  background: url(../images/brand-image.jpg) repeat 100% 100%;
}

.banner-img {
  position: relative;
  overflow: hidden;
}

.banner-img a {
  width: 500%;
  display: flex;
  position: relative;
  overflow: hidden;
}
.img-a img{
  position: relative;
}
.leftbtn {
  width: 64px;
  height: 64px;
  position: absolute;
  top: 43%;
  left: 0;
  background: url(../images/banner-prev.png);
}

.rightbtn {
  width: 64px;
  height: 64px;
  position: absolute;
  top: 43%;
  right: 0;
  background: url(../images/banner-next.png);
}

.banner-btn{
  display: none;
}

.banner-img:hover .banner-btn {
  display: block;
}

.leftbtn:hover {
  background: url(../images/banner-prevhover.png);
}

.rightbtn:hover {
  background: url(../images/banner-nexthover.png);
}

/* <!-- 次元时代 --> */
.Dimension-content {
  text-align: center;
  position: relative;
  padding-bottom: 50px;
}

.Dimension-h1 {
  padding-top: 84px;
  font-size: 48px;
  font-weight: 700;
  line-height: 72px;
  color: #000;
}

.Dimension-h3 {
  font-size: 34px;
  font-weight: 600;
  line-height: 72px;
  color: #f7d84a;
}

.Dimension-p {
  font-size: 24px;
  line-height: 60px;
  color: #000;
  margin-bottom: 30px;
}

.Dimension-a {
  width: 46px;
  height: 124px;
  background: url(../images/brand-次元时代2.png) 100% 100%;
  position: absolute;
  top: 37%;
  right: 3px;
}

/* <!-- 营销 --> */
.market {
  background: url(../images/brand-营销.jpg) repeat 100% 100%;
}

.market-ul {
  display: flex;
  justify-content: space-between;
}

.market-li {
  width: 240px;
  padding-top: 60px;
  text-align: center;
  padding-bottom: 48px;
}

.market-li:nth-child(2) {
  width: 270px;
}

.market-li:nth-child(3) {
  width: 350px;
}

.market-span {
  width: 22px;
  height: 7px;
  background: #000;
  margin-bottom: 8px;
}

.market-h6 {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 25px;
}

.market p {
  font-size: 18px;
  color: #000;
  line-height: 32px;
}

/* <!-- 五大模式 --> */
.model {
  padding-top: 103px;
}

.model-span,
.case-span {
  width: 22px;
  height: 7px;
  background-color: #f7d84a;
}

.model-h3,
.case-h3 {
  font-size: 26px;
  color: #000;
  text-align: center;
  padding: 18px 0 66px;
  font-weight: 600;
}

.model-top-list-content {
  width: 466px;
  text-align: center;
}

.span-one {
  font-size: 24px;
  font-weight: bold;
  padding-top: 8px;
}

.span-two {
  width: 172px;
  height: 28px;
  line-height: 28px;
  font-size: 18px;
  background: #f7d84a;
  border-radius: 5px;
  margin: 15px auto;
}

.model-top-list {
  display: flex;
  justify-content: space-between;
}

.model-top-list-p,
.model-bottom-list-p {
  font-size: 18px;
  color: #000;
}

.model-top-ul {
  width: 390px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.model-top-ul li {
  width: 124px;
  height: 46px;
  line-height: 46px;
  border: 1px solid #000;
  border-top: 3px solid #000;
  margin-top: 20px;
}

/* model-bottom-list */
.model-bottom-list {
  display: flex;
  justify-content: space-between;
}

.model-bottom-list-content {
  width: 270px;
  text-align: center;
  padding-top: 90px;
}

.model-bottom-list-content:nth-child(2) {
  width: 378px;
}

.model-bottom-ul {
  width: 260px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.model-bottom-ul li {
  width: 124px;
  height: 46px;
  line-height: 46px;
  border: 1px solid #000;
  border-top: 3px solid #000;
  margin-top: 20px;
}

/* <!-- 精选案例 --> */
.case {
  padding: 103px 0px 46px;
}

.case-ul {
  width: 1184px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.case-li {
  width: 275px;
  height: 288px;
  margin-bottom: 34px;
}

.case-img {
  border-radius: 5px;
  margin-bottom: 14px;
}

.case-spano,
.case-spant {
  font-size: 18px;
  color: #000;
  font-weight: bold;
  margin-bottom: 8px;
}

.case-p {
  width: 275px;
  font-size: 18px;
  color: #828282;
  line-height: 25px;
  word-break: break-all;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

/* <!-- 联系方式 --> */
.contact {
  background: #d8d8d8;
  height: 728px;
  
}

.contact-content {
  padding-top: 60px;
  position: relative;
}

.contact-content-span {
  width: 22px;
  height: 7px;
  background: #000;
  margin-bottom: 20px;
}

.contact-content-p {
  text-align: center;
  line-height: 40px;
  font-size: 26px;
  font-weight: bold;
  color: #000;
}

.contact-ul {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
}

.contact-p,
.contact-work-p {
  padding-bottom: 8px;
  font-size: 16px;
  height: 16px;
  line-height: 16px;
}

.contact-input {
  border: 1px solid #000;
  width: 247px;
  height: 16px;
  border-radius: 9px;
  padding: 16px;
  background: #fff;
  outline-style: none;
  outline-width: 0;
  font-size: 16px;
}

.contact-work {
  padding-top: 32px;

}

.contact-work-textarea {
  border: 1px solid #000;
  width: 1150px;
  height: 106px;
  border-radius: 9px;
  padding: 8px 16px;
  background: #fff;
  outline-style: none;
  outline-width: 0;
  font-size: 16px;
  font-family: PingFang SC, Hiragino Sans GB, Microsoft YaHei, Helvetica Neue, Helvetica, Arial;
}

.contact-btn {
  margin: 0 auto;
  margin-top: 42px;
  display: block;
  width: 270px;
  height: 74px;
  line-height: 74px;
  text-align: center;
  background: #f7d84a;
  font-size: 28px;
  color: #000;
  border-radius: 18px;
  border: none;
}

.contact-alert{
  position: absolute;
  top: 215px;
  left: 510px;
}

.contact-alert li{
  width: 200px;
  height: 30px;
  text-align: center;
  border-radius: 3px;
  line-height: 30px;
  color: rgb(214, 39, 39);
  font-size: 13px;
  background-color: rgb(253, 221, 221);
  border: 1px solid rgb(224, 129, 129);

}

.contact-alert .success{
  width: 200px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 3px;
  color: rgb(42, 42, 236);
  font-size: 13px;
  background-color: rgb(198, 216, 248);
  border: 1px solid rgb(113, 177, 250);
}